Clay-separator



(No Model.) C' A WYMAN.

CLAY SBPABATOR.

Patented Mar. 22,' 1892.

l L um CwrZeJ \A, I /NvfA/Tol?, *u w y Ninn TATES CHARLES A. VYMAN, OFHUTCHINSON, MINNESOTA.

CLAY-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 471,322, dated March22, 1892.

Application tiled November 9. 1891. Serial No. 411,319. (No model.)

To all whom ty may concern:

Be it known that I, CHARLES A. WYMAN, a citizen of the United States,residing at Hutchinson, in the county of McLeod and State of Minnesota,have invented certain new and useful Improvements in Clay-Separators, ofwhich the following is'a specification.

There is a large class of clays throughout the United States and foreigncountries that would be well suited for brick, tile, and pottery makingif the stone and gravel could be cheaply and quickly removed or the clayseparated from that which renders it useless in its natural state.

The present invention relates to a machine for effecting the separationof the detrimental substances from the clay; and it consists in variousfeatures, details, and combinations hereinafter set forth and claimed.

ln the drawings, Figure l is a vertical longitudinal sectional view ofmy machine in its preferred form; Fig. 2, a vertical transversesectional view on the line 2 2 of Fig. l, and Fig. 3 a rear end view.

A indicates a tank or vat provided with an overflow a and also with acurved bottom b. At opposite ends of the tank are bearingscc, in whichis j ournaled a shaft B, carrying at one end a band-wheel cl, the saidshaft being arranged in a slightly-inclined position, as clearly shownin Fig. l.

Secured to the shaft B are spiders e, which carry the heads or ends Cand C of the rotary screens D and E. The head C is cut away at thecenter to permit the shaft to project therethrough and also to receivethe discharge end of the hopper F, which is held stationary by beingattached to the tank. Head C is provided with a corresponding centralopening, through which the lower end of the shaft projects and throughwhich the gravel or stones are ultimately discharged into a third screenor cylinder G, which is secured to the head C and turns or rotatestherewith. The screens D and E are preferably cylindrical incross-section, as shown in Fig. 2, the screen D beingof smaller diameterthan screen E and placed within the latter, as shown in Figs. l and 2,so as to form an annular space or chamber H. At its lower end the screenD (which is of coarser material than the screen E) is provided with oneor more 'Secured within the central opening in the v head C are inclinedchutes K, (one or more,) which are arranged directly opposite theopenings I and wings J, as shown in Figs. l and 2. The lower ends ofthese chutes K proj ectinto the third and smaller cylinder G, whosedischarge end, as shown in Fig. 1, projects beyond or over the end ofthe tank or vat.

Mounted loosely upon the shaft B within the cylinder D is a rake orbreaker L, which is so arranged as to break up the lumps of clay as thecylinders or screens rotate, the weight of the rake being sufficient tohold it in its normal Working position.

M indicates a water-supply pipe provided with two branches, one fserving to deliver water into the hopper, while the other g discharges4water onto the delivery screen or cylinder Gand the contained material.The water flowing into the hopper serves to soften and break up thelumps or clods before they enter the cylinder D, while aiding in keepingthe hopper open and facilitating the feeding operation. The waterdischarged onto. the cylinder G gives to the contained material a finalwashing and iiows thence into the tank or vat A. The pipe M serves tokeep the tank or vat A filled to the proper level, thereby insuring thethorough wetting or washing of theY matters in the screens or cylinders,which latter, by the way, are partially immersed in the water in thetank.

Secured to the outer face of the double screen D E or the heads C C areone or more blades or wings N, which extend lengthwise of the cylinderfrom end to end. These blades or wings work close to the covered bottomof the tank or vat and keep the matters heldin suspension by the waterconstantly stirred up and agitated, so that they will pass off over thespout a from time to time. Now as the material is fed into the hopper Fit finds its way into the interior of cylinder D, which is immersed inthe water of tank A. This softening of the clay, together with theaction of the breaker or rake L, serves to loosen the gravel, .whichlatter when they are too large IOO to pass through the meshes of thescreen l) iind their way toward the lower end of the latter and passthrough the lowcrmost opening I in the screen D onto the inner surfaceof the screen E. As the cylinders or screens turn oi rotate together,the materialavhich passes through the opening I, as just men tioued,will be caught by the blade or wing J and lifted up, and when the partsreach the position shown in the drawings the gravel will fall from theblade or wing back through the opening and onto or into the inclinedchute K, which is then directly beneath the opening I. From this chutethe material is discharged into the cylinder G, where it is given afinal washing preparatory to being tailed olf over the end of the saidscreen G.

In the drawings I have shown two openin gs I, with the correspondingwings .I and chutes K, one set receiving while the other set isdischarging the gravel; but I do not wish to be understood as limitingmyself to any specilic number. The finer gravel which passes through themeshes of the screen D also, by reason of the inclination of the screenE, finds its way to the lower end of the latter, where it is caught bythe wing' or blade J and lifted up and discharged in the same manner asthe coa-rser gravel. The clayey material finds its way through themeshes of the screens and passes into the tank or vat, from which itpasses oit with the water.

hile the machine is designed primarily for the separation of the gravelfrom the clayey substances, it is obviously capable of effecting theseparation of other materials. IVater will injuriously a'tect somematerials, and when the machine is used for the separation of these thewater will be shut ot't' and the :liner material discharged into thereceptacle A and removed therefrom by any snitable means.

I'Iaving thus described my invention, what I claim isl. In combinationwith the screen D, having an opening I, a screen E outside of screen D,a blade or wing J, arranged between the screens D and E opposite thesaid opening, and a chute K, also opposite the opening I and adapted toreceive the material carried up by the blade or wing, all ol' said partsrotating in unison, substantially as shown and described.

2. In combination with the screens D and E, and the interposed wing J,adapted to lift up the material passing through an opening I in thescreen D, a third screen G, and the chute K, arranged opposite theopening I and extending from the interior of screen D into the screen G,all substantially as shown and described.

In combination with vat or tank A, the rotary screens D E, the fixedhopper F, the tailing-screen G, rotating with the screens D E, and thewater-supply pipe M, having the branchesf and g to deliver into thehopper F and screen G, respectively.

Li. In combination with the heads C C', each having a central opening,the screens D and E, secured to the heads and the former provided witho1 @nin gs I at its lower end, blades or wings J, arranged inthe spacebetween the cylinders or screens opposite the said openings I, a screenG, arranged about the open ing in the head C, the chutes K, rotatingwith the cylinders and extending from opposite the openings I in screenD into the screen G, a fixed hopper F, projecting through the head C, areceptacle to receive the finer 1naterial discharged from the screens, ashaft on which the screens or cylinders are supported, and means forimparting motion to the shaft and screens.

The combination, with tank A, of screens D and E, shaft B, supportingthe same, and a rake L, mounted upon said shaft.

In witness whereof Ihereunto set my hand in the presence of twowitnesses.

CHARLES A. IVYMAN.

Witnesses: i

L. L. DAY, R. C. DWINNELL.

